Edward Valadez

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Notes Temperature = Volume x Pressure / Constant Volume = Constant x Temperature / Pressure Pressure = Constant x Temperature / Volume Pressure x Volume/Temperature = Constant Pressure needs to be in the same unit, Volume needs to be in the same unit, Temp has to be in K The Combined Gas Law is a combination of Boyle's and Charles' Laws. The Combined Gas Law describes the relationship between pressure, volume, and temperature. For example, if the pressure increased, wither the volume would decrease or the temperature would increase. The Combined Gas Law can be used to solve any Boyle's or Charles' Law problem. If one of the variables remains constant, disregard that variable by leaving it out of your equation or setting it to the same value on either side of the equals sign. Examples 1) A cylinder contain a gas of volume 30 L, at a pressure of 110 kPa and a temperature of 420 K. Find the temperature of the gas which has a volume 40 L at a pressure of 120 kPa. Vi = 30 L, Pi = 110 kPa, Ti = 420 K, Vf = 40 L, Pf = 120 kPa Step 1: Substitute the values in the below final temperature equation: Final Temperature(Tf) = PfVfTi / PiVi = (120 x 40 x 420) / (110 x 30) = 2016000 / 3300 Final Temperature(Tf) = 610.91 K 2) A cylinder contain a gas of volume 10 L, at a pressure of 80 kPa and a temperature of 200 K. Find the temperature of the gas which has a volume 20 L at a temperature of 220 K. Vi = 10 L, Pi = 80 kPa, Ti = 200 K, Vf = 20 L, Tf = 220 kPa Step 1: Substitute the values in the below pressure equation: Final Pressure(Pf) = PiViTf / TiVf = (80 x 10 x 220) / (200 x 20) = 176000 / 4000 Final Pressure(Vf) = 44 kPa
Notes PV = nRT P = pressure V = volume n = number of moles of gas R = .082 atm or T = absolute temperature in Kelvin Examples 6.2 liters of an ideal gas are contained at 3.0 atm and 37 °C. How many moles of this gas are present? T = °C + 273 T = 37 °C + 273 T = 310 K n = PV / RT n = ( 3.0 atm x 6.2 L ) / ( 0.08 L atm /mol K x 310 K) n = 0.75 mol There are 0.75 mol of the ideal gas present in the system.
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Edward Valadez YEAR 2014
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Unit 1 Measurement Lab Separation o
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Unit 4 (15 days) Chapter 10 Chemica
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29. Never handle broken glass with
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Table E Selected Polyatomic Ions Fo
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Table H Vapor Pressure of Four Liqu
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Table K Common Acids Table N Select
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Table R Organic Functional Groups C
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Table S Properties of Selected Elem
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Table T Important Formulas and Equa
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SCIENTIFIC NOTATION RULES How to Wr
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1. 7,485 6. 1.683 2. 884.2 7. 3.622
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Significant Figures Rules There are
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Rule 3: A final zero or trailing ze
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16) 3.88 x 10 = 3 17) 3004 = ____4_
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15) 8000 ÷ 4.62 = __________ 16) 0
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2. One cereal bar has a mass of 37
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1. How many meters are in one kilom
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Dimensional Analysis This is a way
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Converting Real Things Table 1 Usin
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http://www.learner.org/interactives
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Electrovalence Don't get worried ab
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P N P N
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www.youtube.com/watch?v=jtYzEzykFdg
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In the space below, write the unabb
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Increases Atomic Size Increases Top
Page 72 and 73: Electronegativity Increases Electro
Page 74 and 75: Create groups for these Scientist a
Page 76 and 77: Radioactivity was discovered my Ant
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Page 80 and 81: Metallic bounding Notes Lattice- a
Page 82 and 83: Covalent H - O 2+ H20,OH, H30 1,2,3
Page 84 and 85: Name Formula Charge Dichromate Cr
Page 86 and 87: Bent Bent Octahedral Square Planar
Page 88 and 89: The Mole www.youtube.com/watch?v=As
Page 90 and 91: Mole Conversions The Three Steps to
Page 94 and 95: How to Balance Chemical Equations A
Page 96 and 97: Step 5 Balance the hydrogen atoms n
Page 98 and 99: 6) ___ Mn(NO 2 ) 2 + ___ BeCl 2 __
Page 100 and 101: Categories of Reactions All chemica
Page 102 and 103: 1) NaOH + KNO 3 --> NaNO 3 + KOH 2)
Page 104 and 105: Balancing Equations Practice Proble
Page 107 and 108: Percent Yield Practice Problems fro
Page 109 and 110: Liquids Liquids have a definite vol
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Page 113 and 114: Boyle’s Law States that for a giv
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Page 117 and 118: Formula and Usage V 1 / T 1 = V 2 /
Page 119 and 120: Gay-Lussac’s Law States that if a
Page 121: Example http://www.youtube.com/watc
Page 125: Unit 5 Chapter 13 States of Matter
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Edward Valadez

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